Planning Register
Dún Laoghaire-Rathdown County Council · D25B/0259/WEB · Permission

11, Cypress Road, Mount Merrion, Blackrock, Dublin, A94F5C7

Data updated 12 Sept 2026 · register lag up to 7 days · sources & freshness

Council received 13 May 2025We first saw it 11 Sept 2026, 15:18 (487 days after receipt — sources refresh weekly)

D25B/0259/WEB is a planning application for permission at 11, Cypress Road, Mount Merrion, Blackrock, Dublin, A94F5C7, received by Dún Laoghaire-Rathdown County Council on 13 May 2025 and first seen by Planning Register on 11 Sept 2026. The application describes: Conversion of existing attic space comprising of modification of existing roof… The council granted permission on 2 Jul 2025. The five-week observation window closed on 17 Jun 2025. A commencement notice (CN0142215DR) was lodged on 18 May 2026, so works have started on site. The site is zoned R2 — existing residential under the Dún Laoghaire-Rathdown County Council development plan. Within 500 m there are 145 other decided applications in the last five years and 21 appeals.

Appeal window closes 30 Jul 2025 closed 409 days ago
4 weeks from the council's decision (2 Jul 2025) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

Conversion of existing attic space comprising of modification of existing roof

The description is truncated at source (80 characters in the national feed). The full text is on the council register.

Status
Final Grant
Decision
Grant permission on 2 Jul 2025
Final grant
7 Aug 2025
Site (from polygon)
527 m²
Location precision
site (coords_polygon)

Timeline

  • 13 May 2025
    New application
    Observation window closed 17 Jun 2025
  • 2 Jul 2025
    Decision
    Appeal window closed 30 Jul 2025

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Appeal

Not appealed.

Commencement

  • Opt out commencement notice CN0142215DR
    18 May 202611 Cypress Road, Blackrock, Dún Laoghaire-Rathdown, A94 F5C7matched by ref_exact
  • Opt out commencement notice CN0132640DR
    29 Aug 202511 Cypress Road, Blackrock, Dún Laoghaire-Rathdown, A94 F5C7matched by ref_exact

Zoning at the site

R2 — Existing residential

Objective A: A To provide residential development and improve residential amenity while protecting the existing residential amenities

An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.

R2.6 — Existing residential

Objective A: A To provide residential development and improve residential amenity while protecting the existing residential amenities

An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.

Designations within 250 m

No OPW flood extent nearby.

  • Radon risk area · 2
    About 1 in 10 homes in this area is likely to have high radon levels; About 1 in 20 homes in this area is likely to have high radon levels
  • Record of Protected Structures · 1
    Stansted

Provenance

Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 15:18 (store id 19699). Deadlines were computed by the store from the received / decided dates under the Planning and Development Act 2000 and are recorded as events, not recomputed here. Council register: https://planning.agileapplications.ie/dunlaoghaire/application-details/?ref=D25B/0259/WEB.

Source: npad · fetched 11 Sept 2026, 15:18
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npadCC-BY-4.011 Sept 2026, 15:18open